package com.yunzhou.utils;

import com.auth0.jwt.JWT;
import com.auth0.jwt.algorithms.Algorithm;

import java.util.Date;
import java.util.Map;

public class JwtUtil {

    //接收业务数据,生成token并返回，claims为token中携带的数据
    public static String createToken(String secretKey, long ttlMillis, Map<String, Object> claims) {
        return JWT.create()
                .withClaim("claims", claims)
                .withExpiresAt(new Date(System.currentTimeMillis() + ttlMillis))
                .sign(Algorithm.HMAC256(secretKey));
    }

    //接收token,验证token,并返回业务数据
    public static Map<String, Object> parseToken(String secretKey, String token) {
        return JWT.require(Algorithm.HMAC256(secretKey))
                .build()
                .verify(token)
                .getClaim("claims")
                .asMap();
    }

}
